I think v49 is pretty stable except compcache when disksize is defined to be so big that it does not use eMMC swap (mmcblk0p3) disk at all.

This is known issue, which was noticed in "COMPCACHE on power-kernel" thread. See this post. It is good to read the whole tread, if interested in about this nice feature.

I hope freemangordon has time to look this issue, because at the beginning compcache is fast and smooth until after some time system start to become unresponsive.

I did try again several disksizes and system settings with v49, but always unresponsiveness came after some usage. It would be a nice addon for N900 to get compacache running smooth.